thurston



May 1, 1928. R 16,955

E. B. THURSTON ELEVATOR OPERATION DEVICE Original Filed Nov.l3. 1922 4heets-Sheet 1 May 1, 1928. Re. 16,955

- E. B. THURSTON ELEVATOR OPERATION DEVICE Original Filed Nov.l.'5. 19224 Sheets-Sheet 2 I I avwwlto'v E. B. THURSTON ELEVATOR OPERATION DEVICEMay 1, 1928. Re. 16,955

Original Filed Nov.13, 1922 "4 Sheets-Sheet 3 awueutoz M Q. Wm

551;; 24m r- M May 1; 1928. Re. 16,955

E. B. THURSTON ELEVATOR OPERATION DEVI CE Original Filed Nov.13. 1922 4hBBtS- hGBt 4 anoeml oz WHM - system. Special provision is made inconnec-.

' Reissued May 1,

UNITED STATES ERNEST B. mnnns'ron, or TOLEDO, omo, as'srenon 'r'oirnnnanen'ron ELEvA'ron. a.

MACHINE 00., or TOLEDO, OHIO, A conronar'lon or 01110.

lation having a dual system of control, so'

that it may be operated either as an automatic system or as anoperator-controlled tion with both systems of control forautomaticallybringing the car to a stop in such a manner that it will registeraccurately with any floor which may have been selected. The invention,in its present embodiment, is shown as operated by a three-phasealternating electric current, but it is obvious that the invention isnot limited to such installation.

Referring to the drawings:

Figure 1 is a view, with parts broken away, illustrating the inventionin connection with a three-phase alternating current system.

Fig. 2 is a wiring diagram of features of control of the installation ofFig. l inde- "elevator car in conjunction with operator control intravel toward such floor or land- Fig. (ijis a sectionon the line 66,Fig. 5. In elevator shaft 1 a1'e., landings' 2 past "which may travelelevator car 3 as actuated by hoisting line 4 passing upward from thecar 3 about hoistingdrum 5 on shaft 6. The hoisting'line 4, afterpassing about the hoisting drum 5 extends about idler 7 to counterweight8. Motor fil is shown as provided with shaft 10 upon, which is fixedbrake drum 11, normally engaged by brake shoes 12, 13, held in positionthereagainst I by spring 14. This held shaft 10 through worm 15 thereonin mesh with worm wheel 16 fixed with the shaft 6 and the drum 5, servesto hold the car 3 in the elevatorishaft or well 1 against travel. Uponrelease of the shaft 10 and driving operation of the drum ,5 therefrom,travel of the car 3 is effected.

For manual or operator handling of the r ELEVATOB OPERATION DEVICE.

Original No. 1,553,204, dated September 8, 1925, Serial No. 600,542,filed Rovember 113, 1922. App11eation for 1 issue filed August 27, I

car 3, there is provided a controller 17 in the car 3. This controllerhas-contact 18 which in central position engages terminal --19 fromwhich extends line 20 to terminal 21- at throw over control switch 22.The

. a iass term throw over control is used herein to denote control meansfor changing over'from the automatic system to the operator handlingsystem or vice versa. The position of this switch 22 as taken herein foroperator handling of the car 3, is-that the terminal 21 has contact withterminal 23. From this terminal 23 extends line'24 through gate switch25 on the car 3, through landing doorv interlock switches 26, upper overtravel switch 27, lower over travel switch'28, governor switch 29, as aseries of safety devices, thence by way of line 30 through car pushbutton normally closed to power supply line 31.

In the handling of the controller 17, say for up direction travel of thecar 3 in the elevator well or shaft 1, this controller 17 is shiftedtobring its contact 18 to terminal 32. From this terminal 32 vextendsline 33 by way'of .coil 34 at switch 35, thence by line 36 throughswitch 37 to line 38 extending to interlock at down direction relay 39.

Withsuch down relay 39 closed, the line'38 is connected to line 40extending to energize coil 41 of up direction relay 42. From this coil41 extends line 43 through safety device switches 25, 28, 29 to secondpower'supply line 44. This closing of the up direction The power line 44extend's through upper I stop limit switch 45, and thence by line 46 tothe relay 42, and therefrom by line 47 to winding 48 of direction switchmotor 49.

Third power supply line 50 extends to the relay 42, andthence by way ofline 51 to' winding 52 of the switch motor 49. From the line 20,connected through the switch 23,

line 24, and devices 2ff, 26, 27, 28, 29, 3-0, with the power line 31,is branch 58 to third wind- 3 ing of the motor 49. The three windings ofthis three-phase alternat1ng-current torque motor 49 are thus energized,and

effective through coupling 55 to rock shaft 56 carried by control boardor panel 57. Up direction power switch 58 is accordingly closed throughthe operation of this shaft 56.

From the line 20 extends branch 59.

through interlock as actuated by shaft 94 for high speed switch 61. Withthis high speed main switch 61 closed, the line 59 is connected by line62 to winding 63 of main low speed switch torque motor 64, carried bythe panel 57. The line 47 has branch 65 to winding 66 of the torquemotor 64, while the 'line 51 has branch 67 to winding 68. Ac-

cordingly, as the relay 42 has closed to energize the direction motor49, there is a simultaneous energizing/of low speed main switch motor'64, effective through two to one speed reduction gearing 69, and asretarded by dashpot 70, to rotate shaft 71 for first closing main lowspeed switch 7 2, to be followed by low speed acceleration switches 73,74, cutting out acceleration resistances in low speed windings 75, 76,77, of the actuating motor 9 forthe hoisting drum5. As shown, theseresistances are in a drawn out junction of the Y-type of three-phasewindings, and one switch arm bridges between two lines to cut outresistances in two phases and thesecond arm of the two arm switchbridges to cut out the third resistance and connect to the other arm tothereby form the junction in a balanced cutting out of theseresistances. The closing of the direction switch 58 serves to energizebrake coils 78, 79, thereby moving the brake shoes 12, 13, clear of thebrake drum 11, so that the motor 9 is free for rotating the shaft 10,and through the worm 15 and the worm wheel 16, driving the drum 5 forcausing the hoisting line 4 to more the car 3 upwardly in the shaft 1,at low speed travel rate.

For increasing the upward travel rate of the elevator car 3,'thecontroller 17 is shifted to have the contact 18 engage terminal fromwhich extends line 81 to terminal 82 at the throw over switch 22. -Asthis throw over switch 22 is in position for operator handling of thecar 3, thevtermi nal82 is connected with terminal 83 from which extendsline 84 to the switch 35. This switch 35 was 3 energized for-closingwhen the controller 17 extends branch 65 was on the terminal 32.Accordinglytlie line 84 is connected to line 85 through upper floor slowdown switch 86, at a control device or drum mechanism near the upperfloor stop switch 37. From this switch 86 extends line 87 to winding 88of high speed switch torque motor 89. From the line 47 90 to winding 91,and from the branch 51 extends branch 92 to winding 93. The threewindings 88, 91, 93, of the high speed torque motor 89 are nowenergized. This high speed switch operating motor 89 ,is mounted on thepanel 57 andthrough speed reduction gearing 69, and as retarded bydashpot 70, may rotate shaft 94 to close high speed'switch 61, andsimultaneously' openthe interlock 60, cuttingout the low speed switchmotor '64, so that the weight at the dashpot 70 may draw the shaft .110through which the rods of elevator travel.

steps out out resistances with maintenance of load balance between thewindings, as the resistances are in the brought out junction of the starwindings. Each switch is shown as comprising two arms. One arm bridgesbetween two lines to cutout two resistances, and the other arm connectswith said bridge to cut out the third resistance to provide thejunction. The car 3 is now ascending in the well 1 at high speed. 7

In the event the operator does not act to throw the controller 17 to acentral position for an intermediate landing stop in the well 1, the car3 is automatically broughtto a stop at the top floor or landing 2. Tothis end landing control stops are connected for tion by being mountedin a bracket 105 upinc rising from the base 106 which carries thedrumbearings 100. This non-rotary shaft 104 is held centered as to the rods102, by extending into a socket 107 of the spider 101. Between thespiders 101 and 103, the shaft 104 has a threaded portion 108. Mountedon this threaded portion 108 of the. nonrotary shaft 104, is a nut 109having arms 102 extend. Accordingly as the rods 102 revolve about theshaft 104 as they are driven from the drum shaft 6, the nut 109 isrotated clockwise for one direction of elevator travel andcounter-clockwise for the reverse direction This nut 109 accordingly-hasan angular shifting with the driven drum 5'. The number of pitches ofthe threaded portion 108 are in excess of the number of rotations of thedrum5 for the full travel distance for the elevator car 3. The range oftravel of the nut 109 is thus within the extent of thethreaded portion108. 1

For effecting automatic control, the traveling nut 109' may haveacontrol member suitably secured thereto, as for example by bolts 111.For effecting floor finding. in connection with operator control, or forauto'' .matic stopping at terminal landings, this I i the rods 102. 15.

control'member may be in the form of a. skeleton drum 112, as shown inFigs. 5 and 6. This drum is shown as provided with down switch coactingflange or cam 113 at one to and extending toward the bearings 100,

a second series of mounting rings 117. These rings 116, 117, are coaxialwith the shatt lOt'and surround the travel region of The upper floorslow down. switch 86 and the upper floor stop switch 37 (indicated inFig. 2) are'mounted on the ring 116 adjacent the bracket 105. Eachswitch is mounted by means of a hook plate 118 adjustably clamped by awedge head bolt 119 as drawn up by nut 120 into firmly anchoringposition at such point as may be desired on the ring 116. The lineterminals are brought in to arm 121 carried by the plate 118. Pivot pin122, carried by the 'plate 118 rockably mounts switch closing arm member123, which is normally held in closed position by compression helicalspring 124, coacting between the plate 118 .and' arm 125. This lever arm125 carries roller 126 which, in the closed position of the switch,extends radially inward to be in the range of control member travel. Thecontrol cams 113, 114, are shown of an extent aplected pitch are.

proximating 180 and are of the pitch of the threaded portion 108,thereby limiting registry of the roller 126 therewith to a se- Thelineal travel ,rate of the up direction switch controlling cam 114, asdetermined by the rotation of the drum 5, while not identical with thetravel rate of. the car 3, may approximate such travel rate. As hereinshown, the drum 5' is driven by a. line 203, which is positivelytied.thereto, so that the controlling cam. is

directly connected up against lost motion,

disturbances, and its travel rate is therefore directly proportional tothat of the car, and the stopping of the latter will be controlled withgreat accuracy, as will be hereinafter more fully explained.

Adjustable mounting of the switch 86 on the ring 116 may be such thatthe slow down switch 86 is first opened. This means, thatnotwithstandingthe operator has failed to shift the controller 17 oilthe terminal 80, the counterweight action of the piston in the dashpotat the high speed torque motor 89 has automatically opened the switches96, 95, 61, with resultant automatic cutting in of the low, speed switchtorque motor 64 due to the action of the interlock 60. This notravelrate may occur at such distance short:

of thetop landing 2% is found most accept able in practice, depending onthe speed of the car and load. As an instance, this opening of the highspeed switch 61 may occur eighteen inches below the top floor 2. Thecontinued travel of the car 3 at low speed is controlled by the drum 5,and while the roller 126 has ridden up on terminal incline 127 of oneend of the cam 114 to open the switch.86, the continued travel of thecam eil'ects lifting of a roller 126 to open the switch 37 as the car 3reaches the top landing 2, thereby automatically stopping the car inproper registering position with such landing. The ready angularadjustment of the plates 118 on the rings 116, permits simpledetermination of the proper placing of these automatic switches. The car3 is thus stopped automatically, notwithstanding the operator has notthrown the controller 17 to central or off position.

To effect movement of the car 3 downward away from the top landing 2, itis only nec essary to throw the controller 17 re'versely from the throwgiven for up direction travel, i. e., to the right in Fig. 1, which willbe ellective through down direction relay coil 128 at the down directionrelay 39, and will energize landing or floor terminal selection solenoid129 for the first or lowermost floor in'the well 1, to close switch 130.This series of connections and control is similar to i that for the updirection as heretofore described with reference to up direction relaycoil 41 and'up direction relay 42. The coiltrol lines will extendthrough lower landing stop switch 131, as well as slow down switch 132-for said lowermost landing. The car 3 if not stopped at an intermediateposition, will automatically come to a stop at the bottom floor, evenwith the controller 17 in downward on position. The sequence of thisautomatic operation is determined by the control drum cam 113 actingfirst to open the slow down switch 132 and then the stop switch 131.This mode of automatic stopping terminally ot' 'the shaft 1 may occurtion from manual or operator control to one sition for the automaticaction of the slow.

of the automatic or push button type is etfected'simply by the operationof the switch 134, located in the car 3. Furthermore, re-

versal or changing back to. manual from push button, may as simply beeffected by the operation of the switch 134 also located in the car 3. 7

From the line 44, between the switches 28, 45, extends line 135 to theswitches 134, 134 in the car 3. The line 135 is connected by this switch134 to line 136 extending to winding 137 of torque motor 138. From thepower supply line 50 extends branch 139 past this normally open switch134 by way of line 140 to winding 141 at the motor 138. From the powersupply line 31, there is branch line 142 to winding 143. As the threewindings of this torque motor 138 are energized, the motor gives a pullto a stop to turn shaft 145, thereby shifting the throw over switch 22from the manual or operator controlled position, to the automatic orpush button control. For re-operation the switch 134 brings about areverse turn for the shaft 145, which would place the switch 22 in theoriginal position for operator operation.

open by the drum 133. Similar conditions for open and closed slow downswitches prevail at this same position of the car 3.

The passenger in the car 3 may, after the doors or gates are closed,select a floor, as the second for example-the one below that at whichthe car is assumed to be. To this end, in the bank of push buttons inpanel 146in the car 3, push button 147 is depressed. The circuits forthe push button are now to be traced.

The power supply line 31, in normal operation, is connected through. theseveral safety devices and line 24, from which extends branch 148,through normally closed interlocks 149, 150. 151, 152, 153, one at eachrei lay for each floor or landing stop, from the switch 35 as thetop-landing relay to and including the switch 130 as the bottom landingrelay switch. From the interlock 153 extends line 154 to terminal 155 atthe throw over switch 22. This terminal 155 is closed of line 158 toterminal 159 which at this position of the throw over switch 22 isclosed with terminal 160, having line 161 extending to coil 162 atsecond floor relay switch 163.

From this relay coil 162, line 164 extends to up stop switch 165,whichisopen. However, this line 164 also extends to down stop switch 166,which as heretofore discussed, is a stop switchbelow the car 3-a nd isclosed. Therefore, there is connectioirfrom the line 164,

'p-ast this switch 166 to line 167 through the closed interlock of openup direction switch 42,thence by line 168 to down direction relay coil128, connected by the line 169 with the line 43 through the safetydevices to the power supply line 44.

It is to be noted that energizing of the landing relay coil 162, closesthis switch 163 and opens the interlock 150. The throwing down directionswitch 170, and thence by.

line 174 to the throw over, switch 22, where it is there connected tothe line 24. Even though the button 147 be depressed for but a shortinterval, there results-this automatic by-passing not only of theinterlock 150, but also of the push button 147, wit-h the operation notonly of the direction switch torque motor 49, but also of the high speedmain switch 61, with its acceleration resistance cutting out switches95, 96, to closed position by the motor 89. The relay 162 cft'ects thisstarting of the car 3 downward on high speed, for the line 24 at thethrow over switch 22, is connected with line 175 to the relay switch163, and through this closed switch by way of line 176 with no effect atopen slow down switch 177, but effective through closed slow down switch178 and the line 87 to complete the third line to the motor 89the lines90 and 92 having been connected in by the down direction relay 39. Thisapproximately simultaneous action of the high speed main switch motorwith the direction switch motor, opens the interlock 60 to preclude anyoperation whatsoever of the low speed switch torque motor'64.

The car 3 is now traveling downward at high speed from the third landingtoward the second. As the car 3 reaches, say, with in about 18 inches ofthe second landing 2, the roller 126 of the switch 178'rides up theterminal incline 127 of the down direction cam end 113 of the/drum 133,to open the slow down switch 178, thus automatically cutting out thehigh speed switch motor 89, for opening the high speed winding switches,and simultaneously through the interlock 60 completing the circuits forenergizing-the low speed switch torque motor 64, thereby actuatingthe'car 3 toward the second landing at low speed. As this landing isreached, the roller 126 at the switch 166 rides up the terminal incline127 of the down direct-ion llh.

- ing of normally closed switch 180 in the line ton 182 at the fourthlanding.

cam end 113 of the control drum 133 and opens the stop switch 166 as thecar 3 1egisterswith such landing. The passenger in leaving the car 3,opens the landing doors or cargates, and through the safety devices,thereby holds the car 3 against anyone'at another landing taking suchcar.

At the -direction switch shaft 56 there is cam 179 which in switchclosing rotation of the shaft 56 for either direction, effects open-183. This switch is retarded in closing by dashpot 181, therebyprovidinga time lag against one at a landing taking the car from a passenger, ifthe passengeracts promptly for opening the car door as soon as the car 3reaches the landing to which the car has traveled. Opening of the cardoor, through the safety device circuit ,p-rec-ludes any landing buttonor even push button on the car control from operating the car. Shouldthe passenger be slow in opening the car door, someone at anotherlanding'may push a landing button and effect starting of the car 3 awayfrom the landing to which it has taken the passenger.

The landing push button control may be considered, say as for takingthecar from the second floor to the fourth floor. The one desiring passagein the elevator pushes button 182 at the fourth floor. From the terminal156 at the throw over switch 22, and the line 157 extends line 183through the closed time lag interlock or switch 180 at the directionswitch torque motor shaft 56, thence by line 184 to the switch or pushbut- From this push button 182, this line 184 is connected to line 185extending to terminal 186, which, in this push button. control positionof the throw over switch 22, is connected with'terminal 187 from whichextends line 188 to coil 189 atfourth floor landing relay switch 190.From this coil 189 extends line 191 which cannot get through'open stopswitch 192 but "can get through closed stop switch 193 to the line 38through the interlock closed by the down direction relay switch 39 andby the line 40 to energize the coil 41 in throwing the up directionswitch 42, the line 43 being from the coil 41-through the safety devicesfor completing the circuit. The direction switch torque motor 49 isoperated to close the up d rection switch 58, and as before described,the high speed motor 89 is simultaneously closed, notwithstanding theinterlock 152 is opened by the operation of the relay 190, as thisswitch 190 by-passes such relay and the push button 182. The cutting inof'the high speed switch torque motor 89 is by way of slow down switch194 at the control drum 133. The se quence of operations in stopping isas heretofore described: The roller 126, riding on the can end the drum133, opens the slow down switch 194 to cut out-the high 11 speedwindings and actuate the car 3 toward e the fourth floor at low'speed,and as the car" reaches such landing, theroller 126 for'the stop switch193 is operated by riding ionthe closed, and thereby gain control of thecar by selecting a floor by depressing a push I panel 157 as soon as theswitch torque motor89 in starting istoithe' i i cam to open this stopswitch 193/ Auto- 1 111aticallythe elevator car is brought t o M thefourth floor, where the one contemplatiji ing use of the car may openthe landing gate I promptly before the time lag switch 180 has exclusionof the low speed switch torque J motor 64. This is effected by bringingfrom the line 24, line 195, throughthe, interlock 60, closed beforeoperation of thehigh'speed switch motor 89, thereby connectlng the lines59, 20', 53, in circuit to energize the motor 49. As the motor 89operates,t-he interlock 60 opens this circuit 'from the line 195, butfor up direction, interlock 196, and for down direction interlock 197are-operated from the direction switch shaft-56 t0 connect the line 195to the lines 20, 5.3. i

As the switch 134 in the car 3 is actuated to change the car operationfrom manual to automatic, the throw over switch 22 cuts out theannunciators in the car 3 which disclosed to the car operator at whichlanding a signal button was pushed. The regular landing push buttons areeffective for the annunciator. Transformer 198 reduces the annunciatorcircuit voltage from the supply lines 31, 44, which circuit is closed asthe throw over switch 22 cuts in for manual operation and connectsterminal 199 with ter minal 156. Simultaneously the lines from therespective landings, as terminal 186, are

connected, as to the terminal 200. Annunvci'ator panel 201 in the car 3is thus connected up for receiving the push button signals anddisclosing such to the car operator.

The drum 53', mounted on the shaft 6 in the upper portion of theelevator shaft or well 1, is connected up to be actuatedso that itssurface or peripheral speed equals the lineal'speed of the car 3.Accordingly, the surface speed of this driven drum 5 is similar to thesurface speed of the hoisting drum 5. This provision of a separate drumditional cause for repeated adjustments, ow

ing to slippage.

Anchor 202 at the elevator car 3 (Fig. 1)

permits attachment of line 203 as a running control line extendingupward about the permits retention of accuracy of control driven drumthence toward the bottom'of ice the registry insures against any stubtoe the well 1 to pass about tension, idler pulley 204, and then upwardto anchor 205 on the car 3. Veight 206 loads the pulley 204 and tends tokeep this control line 203 from slacking and in proper contact with thedrum 5. This auxiliary drive for the control is accordingly one which isnot disturbed by various loadings of the car 3, and one which does notrequire very much adjustment to keep in condition for controlling thetravel of the elevator car 3 for accurate stopping in the shaft 1. Forinstance, in car travel at 150 ft. per minute, with slow down to ft. perminute, the automatic stopping herein occurs within inch of the landing.There is no,lost motion of intermediate connections to detract fromniceties of adjustment. This means close landing registering for freightservice, as in loading and unloading trucks, while for passengerservaccidents.

What I claim is:

1. An electric elevator installation embodying a car, a control linefrom the car, a drum driven by the line, actuating means for the carindependent of said control line and driven drum, and a controller forthe actuating means including means angularly rotative with said drumduring normal travel of said car. I

2. A hoisting drum, a load connected to,

said drum, and control means for said drum,

said control means including a driven drum,

. and actuating means from the load for causthereto, control meansincluding a driven' drum, and a line tied to said load and saiddrivendrum respectively for rotating the latter during all travel of the load.

4. A hoisting drum, a load connected thereto, control means including adriven drum, and a line tied to said load and said driven drum.respectively for causing the latter to rotate with substantially thesame linear surface speed as the rate oftravel of the load.

5. A hoisting drum, a. load connected thereto, a control switch tocontrol the stopping of the load at a predetermined point, control meansfor said switch including a driven drum, and a line directly connectingthe load to said driven drum to effect an opening of said switch atapproximately the same speed as that at which the load travels.

6. A driven drum, axially'shiftable control means rotating with saiddrum during normal rotation of said drum, :1. fixed support, and acontrol means actuated device anchored with the support eccentric to theaxially shiftable control means to be actuated thereby. I

mg said driven drum to rotate in predeter-.

7. A hoisting drum, a load therefor, a driven drum, a rotatable controlmember actuatable from the driven drum,,and driving connections betweenthe load and driven drum operable to maintain similar linear travel ratefor the surface of said driven drum and for the load during all travelof said load.

8. A driven drum,an axially shiftable rotatable coaxial control member,a fixed sup port about said control member, and a control memberactuated device anchored with the support eccentric to the controlmember.

9. A. driven drum, a control member, con nections from the driven drumto rotate the control member therewith during all travel of the drivendrum, and means for shifting the control member axially of the drivendrum.

10. A driven drum, a control member, connections from the driven drum torotatethe control member therewith during all travel of the driven drum,and means for guiding the control member toward and away from the drivendrum.

11. A driven drum, a control member, connections from the driven drum torotate the control member therewith, rotatable guide means for thecontrol member, threaded means effecting axial travel of the controlmember, a fixed support about the control member, and a device anchoredwith the support eccentric to the control member, said device beinglocated so as to be acted ,upon by said control member.

12. An axially shiftable rotatable contrbl fixed support, switch meansmember, a V anchored to the support eccentric to the control member anddirectly actuatable by said 'control member.

13. An axially shiftable rotatable control member, fixed supportingmeans embracing sald control member, and two series of switches anchoredto the sup orting means, eccentric to the control mem er and oppo-'means for anchoring said switches to said arcuate portions.

15. An axially shiftable rotatable control member, supporting meanshaving arcuate portions adjacent the control member, and means foradjustably mounting switches on said arcuate portions.

16. An axially rotatable control member,

two series of switches, and angularly adj ustable mounting means for theswitches.

17.. An elevator car, a hoisting drum for. the car, a driven drum, anaxially shiftable control member coaxial with the driven drum, twoseries of switches, one for travel of the car in one direction and theother for travel of the car in the opposite direction,

trol of the switch operation by said j; for, "a control member, twooppositely'extending series of switches, one for direction ofthecarttravel upwardly and the'other for the direction of the car traveldownwardly,

and control 7 mcal s in the car for predeter- .mlned control "of theswitch operation through said controlmember.

19; An elevator car, a hoisting drum therefor, a control member, twooppositely extending series of switches, one for one di-' rection' ofcar travel and the other for the opposite direction of car travel, and acutout in the car for said control member.

20. An e-leva-tor'cam'a control therefor, a

- manually directed controller in the car shiftable into off positionfor effecting stopping of the car, a preselective landing control forthe car including landing switches, and a throw over control operablefrom the car for cutting out the manually directed controller andcutting in said preselective landing control or vice versa.

21. An elevator car,'a. control therefor, a manually directed controllerin the car shiftable into off position for eifecting stopping of thecar, a preselective landing control for the ear including landingswitches, and a throw over control located outside of the car butoperable from the car for cutting out-the i manually directed controllerand cutting in said preseleetive landing control or vice versa.

22. An elevator car, a control therefor, a manually directed controllerin the car shifta-ble into off position for effecting stopping of thecar, a preselective landing control for the car including landingswitches, a throw over control operable by electric current for cuttingout the manually directed controller and cutting in said preselectivelanding control or vice versa, and manually operablemeans forcontrolling the electric current to operate said throwover comirol.

23. An elevator car, a control therefor, a manually directed controllerin the car shiftable into off position for effecting stopping of thecar, a preselec-tive landing control for the car including landingswitches, a throw over control, electromagneticmeans operable to actuatethe throw over control to cut out the manually directed controller inthe car and to cut in said preselective landing, control or vice versa,and manually operable means for controlling the operation of saidelectromagnetic means. 1

24. An elevator car, a cont-r01 therefor, a

manually directed controller in the car shiftover control-operable tocut out the cont-roland;cont-1'o1. means in the car for determining tli' e con 25. An elevator car, a control therefor, a

manually directed controller in the car shiftable into off position foreffecting stopping of the car,'a presel'ective landing, control for thecar including landing switches, a throw over controloperable to cut outthe manually directed controllcrin the'car and to cut in saidpreselectivc landing control or vice versa, a reversible torque motoroperable when energized ione direction to shift the throw over controlfor automatic operation and operable when energized in the oppositedirection to shift the throw over control back for manual direction ofthe car, and manually operable means within the car for controlling theoperation of said torque motor.

26. An elevator car, a control therefor, a manually directed controllerin the car shiftable into oil position for eti'ccting stopping of thecar, an annunciator in the car, a preselective landing control for thecar including landing switches, and a throw over control operable fromthe car for cutting in the manually directed controller and cutting outthe preselective control while placing said landing switches inoperative connection with said annunciator. i

27. An elevator car, a control therefor, a manually directed controllerin the car shiftable into oll' position for effecting stopping of thecar, an annunciator in the car, a preselec-tive landing control for thecar including landing switches, and a. throw over con trol locatedoutside the car but operable from the car for cutting in the manuallydirected controller in the car and cutting out the preselective controlwhile placing said landing switches in operative connection with saidannunciator.

28. An elevator car, a. control therefor, a manually directed controllerin the car shiftable' into ofl position for effecting stopping of thecar, an annunciator in the car, a pre- Eclectivelanding control for thecar inc-hul ing landing switches, a throw over control operable byelectric current for cutting in the manually directed controller in thecar and cutting out the preselective control while placingsaid landingswitches in operative connection with said annunciator, and manuallyoperable means for controlling the electric current to operate saidthrow over control.

29. An elevator car, a control therefor. a manually directed controllerin the car shift.- able into off position for etfecting stopping of thecar, an annunciator'in the car, a preselectiv'e landing control forthecar includ ing landing switches, a throw over control operable .fromthe car for cutting in the manually directed controller the prcselcctivecontrol while placing said landing switches in operative connection withsaid annunciator, electromagnetic means operable to actuate the throwover control, and manually operable means for controlling the operationof said electromagnetic means. I

30. An elevator car, a control therefor, a manually directed controllerin the car shiftable into off position for effecting stopping of thecar, an annunciator in the car, a preselective landin control for thecar including landing swltches, a throw over control for cutting in themanually directed controller and cutting out the preselective controlwhile placing said landing switches in operative connection with saidannunciator, a torque moton for operating said throw over control, andmanually operable means within the car for controlling the operation ofsaid torque motor.

31. An elevator car, a control therefor, a manually directed controllerin the car shiftable into off position for effecting stopping of thecar, an annunciator in the car, a preselective landing control for thecar including landing switches, a throw over control for cutting in themanually directed controller in the car and cutting out the preselectivecontrol while placing said landing switches in operative connection withsaid annunciator, a reversible torque motor operable when energized inone direction to shift the throw over' control for manual operation ofthe car and operable when energized in the opposite direction to shiftthe throw over control back for automatic operation, and manuallyoperable means within the car for controlling said torque motor.

32. In a multi-speed speed and high speed actuating connections for the.car, in combination with a controller in the car operable throughsaid-connections to cut in first lowspeed and then high speed instarting the car, and in addition to said controller a preselectivelanding control for the car for cutting in high speed for the car instarting to the exclusion of low speed.

33. In a multi-speed elevator car, and low speed and high speedactuating connections for the car, in con'lbination with a controller inthe car operable through said connectionsto cut in first low speed andthen higher speed in starting the car, in addition-;-to said controllera preselective landing control for the car cutting in high speed instarting the car to the exclusion of low speed, and connections for asbrought ing control.

34. In a multi-speed elevator car, and low cutting in low speed instopping about by said preselective land and cutting out a landing'nections from the driven elevator car, lowmember, and a speed and highspeed actuating connections for the car, the combination of a preselec--tive landing control embodying connections effective for starting thecar on high and stopping the car on low speed.

35. An elevator car, a well for the car providing landings, actuatedconnections for the car including a switch and rotary means for-openingand closing said switch, a preselective landing control embodyingmanually operable connections in the car and for for. starting andstopping the car by operating said switch, and a mechanical retarderlagging the operation of said switch from a landing connection only,said retarder being bypassedby said car connections, but as operablefrom a landing connection effective in permitting a' passenger in thecar a timed interval at a landlng beforea reselection of a manualconnection at a landing may be effective for operating the car.

36. An elevator car, viding landings, actuating connections for the carincluding a switch and rotary means for opening and closing said switch,a preselective landing control embodyingmanuallly operable connectionsin the car and for tie car by operating said switch, a mechanicalretarder by-passed by said car connections and effective through controlfrom said landing'connections for lagging the operationof said switch inpermitting a pas-' senger in. the car a timed interval after reachmg alanding, a door at a landing, and

a safety circuit operable'by the opened door to render reselection of amanual connection ineffective.

37 A driven drum, a control member, condrum to rotate the control membertherewith during all travel of the driven drum, an electric circuithaving terminals adjacent said control member, a switch supportedindependently of the'control member, and means for guiding the controlmember during its rotation, toward and away from the driven drum andinto position to actuate said switch to connect said terminals.

38. A driven drum, a control member, connections from the driven drum torotate the control member th rewith, rotatable guide means for thecontrol member, threaded means effecting axial travel switch anchored onthe support outside of the control member, said switch being mounted soas to be moved into closed position by when said control member hastravelled a predetermined distance. ,1

39. An axially shiftable rotatable control member, a fixed support, anelectric circuit having terminals on said support, and switch a Well forthe car pro of the control the control member,

landings for starting and stopping the means anchored to the supportoutside of the control member in position to be actuated by said controlmem er to connect said terminals.

40. An axially shiftable rotatable control member, fixed supportingmeans embracing said control member, two electric circuits havingterminals on said supporting means, and two switches anchored to thesupporting means outside of the control member in position to beactuated at different times y said control member to connect theterminals of the respective circuits.

41. An axially shiftable rotatable control member, supporting meanshaving an arcuate portion adjacent the control member, an electriccircuit having terminals on said supporting means, a switch, and meansfor anchoring said switch on said arcuate portlon in position to beactuated by said control member to connect said terminals.

42. An axiallyshiftable rotatable control ERNEST B. 'THURSTON.

